Is the Tamron 17-50mm f2.8 XR II LD a Weather Sealed lens?

Is the Tamron SP AF 17-50mm F2.8 XR Di II LD Aspherical IF Weather Sealed

Tamron SP AF 17-50mm F2.8 XR Di II LD Aspherical IF Alternatives in Pentax KAF Mount

	Coverage	Weight	Focusing	Street Price
Pentax DA 18-50mm F4.5-5.6 DC WR RE Compare	APS-C / DX	158gr	AF	Amazon B&H Photo
Pentax smc DA 18-55mm F3.5-5.6 AL Compare	APS-C / DX	225gr	AF	Amazon B&H Photo
Pentax smc DA 18-55mm F3.5-5.6 AL WR Compare	APS-C / DX	230gr	AF	Amazon B&H Photo
Pentax smc DA 18-55mm F3.5-5.6 ED AL II IF Compare	APS-C / DX	220gr	AF	Amazon B&H Photo
Pentax DA 16-50mm F2.8 ED PLM AW Compare	APS-C / DX	712gr	AF	Amazon B&H Photo
HD Pentax-DA 20-40mm F2.8-4 ED Limited DC WR Compare	APS-C / DX	283gr	AF	Amazon B&H Photo
Pentax smc DA 16-50mm F2.8 ED AL IF SDM Compare	APS-C / DX	565gr	AF	Amazon B&H Photo
Samsung D-Xenon 16-45mm F4 Compare	APS-C / DX	365gr	AF	Amazon B&H Photo
Samsung D-Xenon 18-55mm F3.5-5.6 Compare	APS-C / DX	225gr	AF	Amazon B&H Photo
Sigma 17-50mm F2.8 EX DC OS HSM Compare	APS-C / DX	565gr	AF	Amazon B&H Photo
Sigma 18-50mm F2.8-4.5 DC OS HSM Compare	APS-C / DX	395gr	AF	Amazon B&H Photo

Other Frequently Asked Questions about Tamron SP AF 17-50mm F2.8 XR Di II LD Aspherical IF